Heat transfer on tube bundles embedded vertically in liquid-fluidized beds

Autor:	Akira Shirai, Akihiro Fukagawa, Kenichi Hashizume, Koichi Fukai
Rok vydání:	2009
Předmět:	Fluid Flow and Transfer Processes Materials science Fluidized bed Multiphase flow Heat transfer Tube (fluid conveyance) Hydraulic diameter Heat transfer coefficient Fluidization Composite material Condensed Matter Physics
Zdroj:	Heat Transfer-Asian Research.
ISSN:	1523-1496 1099-2871
DOI:	10.1002/htj.20267
Popis:	Bed voidage was measured in liquid-fluidized beds having tube bundles embedded vertically in beds, and the heat transfer coefficient was measured on the outer surface of the tube. There were six kinds of test channels used, and a total of nine types of particles of glass and ceramics were tested. The measured bed voidage agreed well with those developed for in-column fluidization, when the hydraulic equivalent diameter was used. Measured heat transfer coefficients on the vertically embedded tube bundles were higher than those on the vertically embedded single tubes, the calculated values for the in-column fluidization, and the calculated values for the horizontally embedded tube bundles. Correlations for predicting the heat transfer coefficient were derived for the vertically embedded tube bundles and single tubes. © 2009 Wiley Periodicals, Inc. Heat Trans Asian Res; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/htj.20267
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::e1d753f477701c67470a21fc667c3a6b https://doi.org/10.1002/htj.20267 Zobrazit plný text záznamu Plný text